public class Sum extends Aggregate
operationargumentEFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, INHERITED_CONTEXT, INSPECTION_CONTEXT, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, NAVIGATION_CONTEXT, NODE_VALUE_CONTEXT, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, W3C_CONSUMING, W3C_FREE_RANGING, W3C_GROUP_CONSUMING, W3C_MOTIONLESS, WATCH_METHOD| Constructor and Description |
|---|
Sum() |
| Modifier and Type | Method and Description |
|---|---|
Sequence |
call(XPathContext context,
Sequence[] arguments)
Evaluate the expression
|
int |
computeCardinality()
Determine the cardinality of the function.
|
AtomicValue |
evaluateItem(XPathContext context)
Evaluate the function
|
ExpressionCompiler |
getExpressionCompiler()
Return the compiler of the Sum expression
|
int |
getImplementationMethod()
Get implementation method
|
ItemType |
getItemType(TypeHierarchy th)
Determine the item type of the value returned by the function
|
StreamingAdjunct |
getStreamingAdjunct()
Get a class that supports streamed evaluation of this expression
|
static AtomicValue |
total(SequenceIterator iter,
XPathContext context,
SourceLocator location)
Calculate the total of a sequence.
|
checkArgumentsaddContextDocumentArgument, addDocToPathMap, bindStaticContext, computeSpecialProperties, copy, equalOrNull, equals, getContextNode, getConvertingCallable, getDefaultArgumentNode, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getOperation, getRequiredType, iterateSubExpressionInfo, makeSystemFunction, optimize, setDetails, useContextItemAsDefaultaddExternalFunctionCallToPathMap, checkArgumentCount, explain, getArguments, getDisplayName, getExpressionName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, preEvaluate, promote, replaceSubExpression, setArguments, setFunctionName, simplify, simplifyArguments, toString, typeCheckaddToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, evaluatePendingUpdates, explain, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getEvaluationMethod, getExecutable, getHostLanguage, getIntegerBounds, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getStreamability, getSystemId, getSystemId, hasVariableBinding, implementsStaticTypeCheck, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, iterate, iterateEvents, markTailFunctionCalls, process, resetLocalStaticProperties, setContainer, setEvaluationMethod, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, toPattern, toStreamingPattern, typeErrorpublic int getImplementationMethod()
getImplementationMethod in class SystemFunctionCallpublic ItemType getItemType(TypeHierarchy th)
SystemFunctionCallgetItemType in class SystemFunctionCallth - the type hierarchy cachepublic int computeCardinality()
SystemFunctionCallcomputeCardinality in class SystemFunctionCallStaticProperty.ALLOWS_ZERO_OR_ONE,
StaticProperty.EXACTLY_ONE, StaticProperty.ALLOWS_ONE_OR_MORE,
StaticProperty.ALLOWS_ZERO_OR_MOREpublic AtomicValue evaluateItem(XPathContext context) throws XPathException
evaluateItem in class Expressioncontext - The context in which the expression is to be evaluatedXPathException - if any dynamic error occurs evaluating the
expressionpublic static AtomicValue total(SequenceIterator iter, XPathContext context, SourceLocator location) throws XPathException
iter - iterator over the items to be totalledcontext - the XPath dynamic contextlocation - location of the expression in the source for diagnosticsXPathExceptionpublic Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
context - the dynamic evaluation contextarguments - the values of the arguments, supplied as SequencesXPathException - if a dynamic error occurs during the evaluation of the expressionpublic ExpressionCompiler getExpressionCompiler()
getExpressionCompiler in class Expressionpublic StreamingAdjunct getStreamingAdjunct()
getStreamingAdjunct in class ExpressionCopyright (c) 2004-2013 Saxonica Limited. All rights reserved.